Malicious PDF — malware analysis report

Static analysis result for SHA-256 9601da052c7847d8…

MALICIOUS

PDF

113.1 KB Created: 2020-08-03 10:18:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 15dcd325d7e2295ed92811453438bb62 SHA-1: 786e2847f0cb90cefcac02c15560e60bb15ef327 SHA-256: 9601da052c7847d898f838f11dd9b0c76a8eb608095a1d982ad6cb57a5cc2373
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a significant number of embedded links, with the primary redirector URL identified as malicious. This suggests the document is part of a link farm or phishing campaign designed to lure users to malicious sites. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=pointers+in+c+yashwant+kanetkar+pdf In PDF document text
    • http://files.drchrischance.com/uploads/1/3/0/7/130775391/5598412.pdfIn PDF document text
    • http://files.thesentimentalgift.com/uploads/1/3/1/4/131454549/sosadad_dunidaborij.pdfIn PDF document text
    • http://files.joanneschwehmbooks.com/uploads/1/3/1/4/131408581/tutepikodezif.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7423/1199/files/30920104539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/6733015585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/40708796351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7738/6911/files/24490730855.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2779/9957/files/chief_keef_asap_rocky_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5335/6955/files/52226939441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9851/4343/files/fibutexerovigomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9350/8771/files/nadobomotixevigasataxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6811/9445/files/koliledilolut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6382/8895/files/wodagujudoriwoluw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9000/9509/files/lixepafuruborupideziwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9173/8277/files/duvalodimutilinabu.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00015ba4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15BA4 5468 bytes
SHA-256: 16e136dfd420e694e40d915806d7454e69f3842efe67ff998fd1043ef937ff7f
font_01_sfnt_off00016e55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16E55 16288 bytes
SHA-256: 7656294df1608db46cd6e6dc68daf5a389e314e93df06b6d1b82fb31c06fc516
font_02_sfnt_off0001a0ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A0EC 16248 bytes
SHA-256: dc43da59b286209db62b1fe1975b2644f099b57bc540068d6271bb1f1337edb1

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